Watts 757N-NRS 6 - Part of the 757 Series ADA Pad exterior chrome finish and union

exterior chrome finish and union connection for ease of installation of a backflow preventer

This 4 IN double check detector backflow preventer assembly prevents backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply

ZB400H-3IH

UPC - 098268386844

Z668-4IC-C

Watts 757N-NRS 6 - Part of the 757 Series ADA Pad exterior chrome finish and unionThis 6 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality from being pumped or siphoned into the potable contaminated water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and contaminated water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other